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Updated: Mar 21, 2026

Spatial and Temporal Control of Murine Melanoma Initiation from Mutant Melanocyte Stem Cells
Published on: June 7, 2019
Searching for the Chokehold of NRAS Mutant Melanoma
Christian Posch1, Igor Vujic2, Babak Monshi3
1Department of Dermatology, Mt. Zion Cancer Research Center, University of California San Francisco, San Francisco, California, USA; Department of Dermatology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA; Department of Dermatology, The Rudolfstiftung Hospital, Academic Teaching Hospital, Medical University Vienna, Vienna, Austria.
Abstract:
Up to 18% of melanomas harbor mutations in the neuroblastoma rat-sarcoma homolog (NRAS). Yet, decades of research aimed to interfere with oncogenic RAS signaling have been largely disappointing and have not resulted in meaningful clinical outputs. Recent advances in disease modeling, structural biology, and an improved understanding of RAS cycling as well as RAS signaling networks have renewed hope for developing strategies to selectively block hyperactive RAS function. This review discusses direct and indirect blocking of activated RAS with a focus on current and potential future therapeutic approaches for NRAS mutant melanoma.
Insights
Targeting NRAS mutations in melanoma has been challenging. Recent advances offer new hope for developing effective therapies to block this oncogenic RAS signaling pathway.
Area of Science:
- Oncology
- Molecular Biology
- Drug Discovery
Background:
- Up to 18% of melanomas feature mutations in the neuroblastoma RAS viral oncogene homolog (NRAS).
- Targeting oncogenic RAS signaling has historically yielded limited clinical success.
- Recent progress in understanding RAS biology and signaling offers renewed therapeutic potential.
Purpose of the Study:
- To review current and future therapeutic strategies for NRAS-mutant melanoma.
- To discuss methods for directly and indirectly blocking activated RAS.
- To highlight advances in disease modeling and structural biology relevant to NRAS.
Main Methods:
- Literature review of research on NRAS-mutant melanoma.
- Analysis of recent advances in RAS signaling and structural biology.
- Discussion of therapeutic approaches targeting RAS pathways.
Main Results:
- NRAS mutations are a significant driver in a subset of melanomas.
- Despite past challenges, new insights into RAS cycling and networks are emerging.
- Direct and indirect blocking strategies are being explored for NRAS-mutant melanoma.
Conclusions:
- Developing effective therapies for NRAS-mutant melanoma remains a critical unmet need.
- Advances in understanding RAS biology provide a foundation for novel therapeutic interventions.
- Future strategies will likely involve a combination of direct and indirect RAS pathway inhibition.
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